El Internacional Grupo Los Dueños De Jose Luis Estrada
{"copyright_id":"0xb9539cc7c694bbe40cd2fae8a5681555fc8b7a3be51e4b81d671ca8f0b38673c","name":"El Internacional Grupo Los Dueños De Jose Luis Estrada","registered_at":"2026-06-15T04:02:17Z","symbol":"NIM0675859","token_address":"0x113077a4df22e3ec0a8e0c0b7555634886b6cfb8","type":"artist","uuid":"df713315-0efa-4eaf-9c71-c5cac59bb8b3"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9539cc7c694bbe40cd2fae8a5681555fc8b7a3be51e4b81d671ca8f0b38673c. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df713315-0efa-4eaf-9c71-c5cac59bb8b3.json and https://artists.proofprofile.net/proofs/artist/df713315-0efa-4eaf-9c71-c5cac59bb8b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec08cace19de22660e1d1f5ba5651b0d20e560dd3e7bedac9a7b401884b2f09. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ31968671.